Indicate the table if the boundaries cause earthquakes or land formations

Water purifying device hyphothesis plsss help me to answer that​

What is reproduction? ma) when parrot's make offspring.b.) when offspring make adult.c) when offspring is an exact copy of the adult.d. when offspring is anexact opposite ofadult.​

Two paramedics, marlon and brando carry 75-kg man from the scene of an accident to an ambulance using a uniform 5-kg stretcher held by the ends. the stretcher is 7.5m long and the man's center of mass is 1m from brando. how much force must marlon exert to keep the man on the stretcher horizontal? ​